It's often annoying when you need to click into each command block and scroll through a text box in order to view each command. Therefore, I'm suggesting the use of monitors to view commands.
The general gist of this suggestion is to add a 'monitor' block that joins up similar to glass panes, and when touching a command block, will display the textual content of the block on the monitor. With multiple command blocks touching the monitor, the monitor display the most recent command block that was 'selected' by a single shift-right-click with an empty hand.
A monitor would look like a plain black tile with a grey edge. The edge only frames the sides of an entire monitor structure, and not the individual units, i.e. the grey would look like a frame wrapping around the entire body. Each block would most likely host 1.5 lines and house about 2-3 characters horizontally per line. The command wraps, but cannot extend off the monitor if all space is used up. It is simply truncated and not displayed.
Compound monitors (ones consisting of >1 block) can only be vertical and cannot be laid out flat like an End Portal. A compound monitor can occupy only one plane (the x-y plane or the z-y plane) and will not join with monitors that aren't coplanar with the original compound monitor.
A compound monitor has to be activated by a redstone signal. Any connected command blocks will be selected by shift-right-clicking on it with an empty hand, and the command within will be instantly displayed on the monitor. The display can be cleared by simply turning the monitor on and off once.
The recipe for a monitor is as such:
This produces 4 monitors per craft.
Most likely, the monitors would be compounded in a 1x5 - 1x8 pattern or a 2x4 - 2x6 pattern, with heights of 1 line and 3 lines respectively. They would most commonly be used to visualize entire rows of command blocks, where it would be convenient to simply select each command block and browse through the text just using your in-game perspective.
Why does the monitor have a crafting recipe, while command blocks are unavailable in survival minecraft?
That was my thought exactly.
The idea, I'm kinda half-and-half on. It seems like a useful addition, but doesn't really go along with the Minecraft vibe, if you get what I'm referring to. Still, it could have some potentially useful things that could come along with it, such as screens of sorts.
Huh, this is interesting. We could still use item frames to display the command, but it has a character limit. I don't know about this, but remove the recipe since command blocks aren't available and maybe provide a concept image?